* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 18px;
  line-height: 1.7;
  color: #333;
  max-width: 650px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

h2 {
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: #333;
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: #000;
}

blockquote {
  border-left: 3px solid #ccc;
  padding-left: 1rem;
  margin: 1.5rem 0;
  color: #555;
}

code {
  font-size: 0.9em;
  background: #f4f4f4;
  padding: 0.15em 0.3em;
  border-radius: 3px;
}

pre {
  background: #f4f4f4;
  padding: 1rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: 3px;
}

pre code {
  background: none;
  padding: 0;
}

hr {
  border: none;
  border-top: 1px solid #ddd;
  margin: 2rem 0;
}

.site-header {
  margin-bottom: 3rem;
}

.site-header a {
  text-decoration: none;
  font-weight: 600;
}

.essay-date {
  color: #888;
  font-size: 0.9rem;
}

.essay-list {
  list-style: none;
}

.essay-list li {
  margin-bottom: 1.5rem;
}

.essay-list .essay-title {
  display: block;
  font-size: 1.1rem;
}

.essay-list .essay-description {
  display: block;
  color: #666;
  font-size: 0.95rem;
}

.tools-section {
  margin-top: 3rem;
}

.tools-list {
  list-style: none;
}

.tools-list li {
  margin-bottom: 0.75rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.9rem;
}